Excess adiposity and iron‐deficient status in Colombian women of reproductive age
Authors' conclusion
Women with higher adiposity were less likely to have an iron-deficient status. W-HtR was the strongest and most consistently associated marker. Inflammation would not be involved in the associations found.
Study context
- Population
- Non-pregnant Colombian women of reproductive age, Colombian nutritional health survey (ENSIN) 2010
- Participants
- 6,357 women
- Outcome
- Iron deficiency (ferritin <15 μg/L and <30 μg/L), anaemia, continuous ferritin and hemoglobin, in relation to WC, W-HtR and BMI
Methodological detailspopulation-based national nutrition survey (ENSIN 2010)
- Population-based national nutrition survey (ENSIN 2010)
Main finding
As reported in the abstract
Iron deficiency (ferritin <15 μg/L and <30 μg/L)
- All adiposity markers, continuous or categorical, inversely and significantly associated with both iron deficiency (ID) thresholds in fully adjusted models
- p < 0.05
- Waist-to-height ratio (W-HtR) and log-ferritin, fully adjusted β-coefficient
- 0.61 (0.39-0.82), p < 0.01 (95% CI)
Observational data: associations, not effects.
Further findings
Anemia
- W-HtR inversely associated with anemia
- P < 0.05
- Decline in likelihood of anemia steeper with increasing W-HtR than with increasing BMI
Shape of associations (cubic splines)
- W-HtR, waist circumference (WC) and BMI linearly associated with ID from values closer to international obesity thresholds; WC and BMI patterns tended toward flatness
Sensitivity analysis: exclusion of CRP > 5 mg/L or adjustment for CRP
- Adiposity markers remained significantly related to ferritin, and W-HtR to anemia
Original publication
Excess adiposity and iron‐deficient status in Colombian women of reproductive age. Obesity (Silver Spring). Published 10 October 2023. doi:10.
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